288987265 has 8 divisors (see below), whose sum is σ = 396325440. Its totient is φ = 198162672.

The previous prime is 288987247. The next prime is 288987277. The reversal of 288987265 is 562789882.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 288987265 - 2⁷ = 288987137 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4128355 + ... + 4128424.

It is an arithmetic number, because the mean of its divisors is an integer number (49540680).

Almost surely, 2^288987265 is an apocalyptic number.

It is an amenable number.

288987265 is a deficient number, since it is larger than the sum of its proper divisors (107338175).

288987265 is an equidigital number, since it uses as much as digits as its factorization.

288987265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8256791.

The product of its digits is 3870720, while the sum is 55.

The square root of 288987265 is about 16999.6254370501. The cubic root of 288987265 is about 661.1391903637.

It can be divided in two parts, 28898 and 7265, that added together give a palindrome (36163).

The spelling of 288987265 in words is "two hundred eighty-eight million, nine hundred eighty-seven thousand, two hundred sixty-five".